IPv4.Global Blog
Driven by leaders, IPv4.Global is founded in expertise, efficiency, and industry knowledge. From serving on advisory boards, to attending regional meetings, our team is integral to the IP community. Read from our experts first-hand and subscribe to our Medium.
What is ARIN?
The internet grew slowly, at first. The original four ARPANET nodes were connected in 1969. By 1988 there were 500,000 internet users. It was then clear: any reasonably complex system requires management. Read more
Routing, Trust & RPKI
The routing protocols we rely on today were developed in a much friendlier environment. No doubt, no one anticipated they’d be in place more than 30 years later. But protocol developers anticipated networks would want some level of control. Read more
Are IP Addresses Property?
Does their specific use make IP addresses “property?” If “a property right is the exclusive authority to determine how a resource is used,” addresses don’t fit. Though not natural property, they are intangible assets, a subset of which is further known as intellectual property. Read more
Making CIDR: A History
Early IP systems subdivided all the available IP addresses into three flavors. Each wildly different in the number of addresses included. These packages of addresses left the distributors of them few choices. Finer subdivisions were needed. Read more
Universities and Underused IPv4 Address Space
Many universities have large pools of unused or under-utilized IPv4 address space. Understanding the value of these assets and knowing how to sell them is crucial. Read more
Intellectual Property During Mergers & Acquisitions
The ownership of intangible assets sometimes changes hands without the acquiring company being aware of the transfer. So, one may buy an asset and be unaware they have done so. Read more
How Educational Institutions Sell Unused IPv4 Addresses for Millions
Universities across the country including Penn State, MIT and Harvard are selling large blocks of IPv4 addresses that they do not need (ie. are not using) for millions of dollars. Read more
What is GeoIP
and Why Does It Matter?
Filtering based on apparent location can be a challenge when starting to use IP addresses that were previously used elsewhere. Remedies are available. Read more
IPv4 Addresses
& Their Role in Education
The Internet Protocol (IP) is a set of rules (a protocol), for addressing and routing data so it can travel through networks and arrive at its intended destination. Internet-connected devices each have a unique IP address. Read more
What is an ASN
and Do I Need One?
An ASN is a unique identifier that’s assigned to a group of one or more IP prefixes run by one or more network operators that maintain a single, clearly-defined routing policy. Read more
2022: Complex & Unpredictable
IPv4 address pricing has followed varied paths during the past few years. This graphical summer offers a few statistics on the state of the IPv4 marketplace during 2022. Trends and macro information on regional and worldwide activity are summarized. Read more